N-Carbobenzoxy-N-phosphinothioylmethylgylcine esters

Abstract

This invention relates to a new class of organic chemical compounds. More particularly, this invention is concerned with ester derivatives of N-carbobenzoxy-N-phosphinothioylmethylglycine. This class of compounds has been found to be useful as intermediates in producing N-phosphinothioylmethylglycine esters which show herbicidal activity. Some of the class of compounds of this invention also show herbicidal activity when applied to certain varieties of weeds or undesired plants.

What is claimed is: 
     
       1. A compound of the formula ##STR5## wherein R is a member of the class consisting of alkyl of from 1 to 10 carbon atoms, chloroalkyl of from 1 to 4 carbon atoms and 1 to 3 chlorine atoms, alkoxyalkyl groups containing from 3 to 9 carbon atoms and each R' is selected from the class consisting of alkoxy or alkylthio of from 1 to 6 carbon atoms, phenoxy, phenylthio and such phenoxy or phenylthio groups substituted with from 1 to 5 substituents selected from the class consisting of halo, methoxy and methyl. 
     
     
       2. A compound of claim 1 wherein R is an alkyl group of from 1 to 4 carbon atoms. 
     
     
       3. A compound of claim 2 wherein R is methyl or ethyl. 
     
     
       4. A compound of claim 1 wherein R' is phenylthio, halophenylthio or alkylthio of from 1 to 4 carbon atoms. 
     
     
       5. A compound of claim 4 wherein R' is alkylthio of from 1 to 4 carbon atoms. 
     
     
       6. A compound of claim 2 wherein R' is phenylthio, halophenylthio or alkylthio of from 1 to 4 carbon atoms. 
     
     
       7. A compound of claim 3 wherein R' is phenylthio, halophenylthio or alkylthio of from 1 to 4 carbon atoms. 
     
     
       8. A compound of claim 6 wherein R' is alkylthio of from 1 to 4 carbon atoms. 
     
     
       9. A compound of claim 7 wherein R' is methylthio or ethylthio.